Undertaleaus Stories

1.2K Stories

Reborn as Error by Kiwi_Seal
#1
Reborn as Errorby Kiwi_Seal
Cover image made by me. Someone meets their end too soon and meets someone who gives them another chance to live a more fulfilling life. One that they would enjoy despit...
An Error's Doll by EroseWisp
#2
An Error's Dollby EroseWisp
You didn't have a bucket list or anything, but you wished you could've at least read a few more fanfics or done literally anything fun before dying. Oh well, at least yo...
A light in the darkness |Nightmare x reader| by NekkoetOnTheIntrnet
#3
A light in the darkness |Nightmare...by NekkoetOnTheIntrnet
Everyone craves the light. It's what keeps them going. people will do anything they can to keep their light shining, but what will they do if the light extinguish and wh...
Reborn as Classic Sans but different (rewrite) by SarahWingDing
#4
Reborn as Classic Sans but differe...by Sarah WingDing
A 31 year old female died and reincarnated as Classic Sans. The multiverse is fighting.Will she join the fight does she know the truth?
Our Pen by R3myR3ad3r
#5
Our Penby R3myR3ad3r
You're the Ink of your multiverse, and you don't even know it. Well, until you meet the Ink of another, along with Error. -NOTES- I made the cover! This obviously isn't...
reincarnated into my old au by addict_076
#7
reincarnated into my old auby Alien Queen
reader is transported into an old au they made when they were younger read as they go through there daily life in a new form and dealing with new but familiar faces p.s...
Reaper sans in creepypastas world by KarmaAkabane425
#8
Reaper sans in creepypastas worldby Karma Akabane
What if someone pushed reaper into the void while he was visiting outertale? Well nothings going to be the same since reapers no longer in the same multiverse... (Everyt...
Nightmare's Love Attention by PassiveNootNoot
#9
Nightmare's Love Attentionby PassiveNootNoot
Cover not by me and so as the characters. Random nightmare scenarios. The 1st chapters are all kiddies but as chapters move on, they get to be more uhhh let's say not f...
Y/N the Creator (Alphatale Fanfic) by DynamicCiocea
#10
Y/N the Creator (Alphatale Fanfic)by DynamicCiocea
An Undertale fan gets reincarnated into the Alphatale Multiverse. Will they use the knowledge gathered from their first life to their advantage? Or will they perish, fig...
Completed
Reincarnated as Error Sans by Lix_za
#11
Reincarnated as Error Sansby Lix_za
Ok...but what if I told you that I died and reincarnated as my super favorite sans?? The Fgod Error sans. But the problem for me is not that, but that I love to flirt...
Radical Reincarnation (on hiatus!!!) by mothmommy42
#12
Radical Reincarnation (on hiatus...by mothy
when you were walking down the street truck-kun decided it was your turn to be reincarnated Met a God who gave you three wishes strangely enough you choose to be reinca...
Becoming dream from dreamtale  by KarmaAkabane425
#13
Becoming dream from dreamtale by Karma Akabane
What if someone from our world became dream on the first day they were made and were determined to not lose their brother to corruption like the original dream did in th...
My Villain [Dust Sans x Reader] by sighnerd
#14
My Villain [Dust Sans x Reader]by sigh
A young woman, left alone after her family sadly passed in a car accident, suffers with PTSD and Anthropophobia (Fear of people.) Her only happiness in this world is the...
To the Bone by GhostFang12
#15
To the Boneby GhostFang
It had been six months since Jaune Arc dissappered from the face of Remnant. It has been four years since Monster Kind had been freed from the Underground. On Remnant 7...
Completed
My Two Masters (UF!Papyrus x Skeleton!Reader) by OreoDaSkeleton
#16
My Two Masters (UF!Papyrus x Skele...by ~Oreo~
Y/N's been traded and sold her entire life. She's learned firsthand that if you don't obey your master, you get hurt. If you force yourself to listen, you live another d...
||No Longer The Guardian|| by LilyLunaetic
#17
||No Longer The Guardian||by Future novelist
Dream was replaced by a new young Guardian. Well that's his cue for his retirement but... Oh well, not everyone let him retire and do whatever he wanted to do. Even af...
This life as Error Sans. by coolkidindahood
#18
This life as Error Sans.by DaCoolest
⪼A life where our beloved [Reader/REDACTED] died a very.. 'Fun' death. ⪼upon realizing their death, they'd realize that they reincarnated into error sans, a character th...
Becoming Error, The Forced God Of Destruction by PinkieKidoCup
#19
Becoming Error, The Forced God Of...by PinkieKido Cup
What if someone is reborn as Error? What if they aren't so bad? What if they're suffering in silence and keeping their job a secret for fear of hate? How will Ink react...
●~My Prisoner~● [UF!Papyrus x Fem!Reader] by xxAstrixZxx
#20
●~My Prisoner~● [UF!Papyrus x Fem...by xxAstrixZxx
[Completed] [[Lemon and Swear Warning]] [2019 Jan Note: This book dates back to 2017, where my grammar and spelling checks weren't efficient due to me being lazy. So I a...